Prepare your vessel by spraying it with vegetable oil spray. Optional: arrange glass, tile or pottery in bottom of vessel. Mix your Quikrete with water according to the instructions. I did about a gallon at a time. Mix well. Should look like thick pancake batter. Pour into vessel. Smooth out and tap vessel on a flat surface to remove air bubbles. Let sit 30 - 45 minutes. Imprint hands and/or feet. Use some sort of tool to write names, date, scripture, etc. (optional). Let sit 24 hours undisturbed before removing from vessel.